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[nb_dev](20020425), [jdk1.4](fcs) -ui com.sun.java.swing.plaf.windows.WindowsLookAndFeel Steps to reproduce: - run IDE in MDI - open file - maximize window -> buttons are visible in upper-rigth corner - close window - reopen file again -> buttons aren't visible Thanks to Silvio Bierman <sbierman@idfix.nl> for report it on nbui.
Assigning to Peter.
It seems it is a problem of (Windows L&F) com.sun.java.swing.plaf.windows.WindowDesktopManager (55) which sets maximized state also for already disposed internal frame, what brakes the buttons. There is a workaround, will look at the class first.
Created also a bug for jdk (#4712690).
Fixed in [trunk] Fix: core/../windows/frames/InternalFrameTypeImpl.java [1.26]
verified in [nb_release34](20020722) & [nb_dev](20020719)
Resolved for 3.4.x or earlier, no new info since then -> closing.